Cable telegraphy.



I. KITSEE.

CABLE TELEGRAPHY.

APPLIGATIOH FILED JAN. 22, 1910. i 1 QQXGSQ, Eatented May'19, 1914;.

w' s? E ii WITNESSES: INVENTOR -a I f I Y the cables newly laid, very hi State win new and useful "improveisentsi Osbi -a- Telegraph of which the fefiowing is "specification.

wvith great capacity illtO sounci or other 'of receiving messages. To enable 1313303 KI'ESEEE, 0F PHILAEELPF= IEESNE ASSIGN MEIZ TS, T0 2.1-" i YORK, N. Y., A CQEZ UBMJEIQE specification of Letter; I

Applicatien fieci January 22,

s 0 lb whom at may concern:

Be 1t Known that I, isms fins'sm, muses 0f the Un1te i States, resldmg at ihfledelplus; mthe county of Fhfiedelgiua smi Pennsylvanm, have invented My invention relates to an imprm'e :1" 1n cable telegraphy. Its obyect is, "ca recelve and translate impulses Hnpressed upon. hue

02% record and automatically repezfi; the same.

In the accompanying drawing, 1 have illustrated. the arrangement used by one the biggest cable companies 01: he *"wms on cables to use this, my im'en'uee (implicate the arrangement Without L- experiments, 1 Wifi give here the exact 5122 s necessary to produce the desireri result elem; for this purpese to give the dais es ob tained in some} transmissian over cable from Qanso, N. 55., t0 Kev; York Y This cable is of a comparatively 01d an its resistsece is, in comnaz'isen is, in mend figures, 9G0 miies 1mg; resistance of S000 ohms and a sapscity 0'5 260 therefore, a r 2300,6 00. Newly. laid. Gabi-es have reslstf: anc'e yer mile of about 1.5 to 1.6 ohms. I will first describe the arrangement usezi 'sbthe receiving station New Yerk. This arrangement is clearly illustrates. in

1. In the cable is insez'ied cendenser. T 0r ,shunte by a 100,060 ehms and it was found. 1%

results were oheeined when the yes had a value of 90,000 ohms. The c grounded with *zhe interpesiti P tive resistance of 800 ehms.

The 1013.21 arfremgement includes lowing :--1%. line relay of a type may able ceils as is described in my besrin -eris-l N0 175,849, m the va ue as describes. i-herefim 2 0 be added thee I 'use '50s? emperes is a gize the fielci ceils. The :5 Ague with graphite eontacts, as descib in i' y spghcesmn-bewring Serra! 1% 506, 6 2. 1 tee s y rs connesefiz m shunt she lnciuct-we vim.

of m

van All aid 30.

sources; ihe he 501m:

3% and. gmuu uwrwsml or ay 08 uszzd an 1.

Elli

: .cvcn through oooco g densor 2, unnecessarily lowers the value the incoming in'lpulsc, on. ccrcful o ments have provon the fact if ndenser oi greater capacity is inserted in the cable, the fluctuations in this cm'idonscr allow diluctuabing current-to llow Ll'llOUgll the relay-shuntj and it was also found tho" i condenser of a small capacity fills entirely tho weak impulses nrrivlo and is proof agoinstythc greatest port orwhat is called-tho shifting of tho zero. The function of .the resistance l is to vfurther cut down the variations of the separate impulses and here it was found-chm if the. resistance is inductive, the so-cnllcd hook-- he condcnser m fthe" shunt 6 is required the incoming inn ulsc and for this reason it was found that it .is best if this condenser has a greater capacity than the cable condenser. The condenser 15 is inserted be .for two reasons :-1st'--A ISierue-ns relay wound to 2500 ohms und' delicately adjust- I ed icns ily locesfrtsnormal whn currentsof d1fl'efcnu var1at1ons and or coco position lengths one s'ent'throu gh it. 2ndzo Instter'h'ow largely the efi'cct of the moving "horo'is mgcrcomc by the arrnngcmcnt, inc

r u're oiot e ton uc oi the lino relay on i" orward stops nearly aldcgrce; and in actual worknig, it was found that these disadvanl-cgcs reduce in the translating device 23 a wavy ike response, the downward stroke not be ing'. clear cut and sharp, and the insertion of the condenser 15 overcomes this (lifliculty entirely because this condenser allows only an impulse of restrlcted duration to pass the coil, no matter how 1on the tongue of complishcd w i it is recommended that u'hero a or Qd m which the o line relay connects witliits forward Stop 1 In conclusion, I will state that in the in relay used in conjunction with the tr is ting arrangement, as illustrated in Fig. :2, the spiral spring is discarded, as tho coils will stand at zeroii ngcurrent is transmit.- ted over the line, and the working or this relay to thorngtor left is more easily :1 s

out the spiral springs, but

transmission is ample larity or the impulse eignates the character, the spiral gfringbghould be reinstated.

' Having non: r1 d-my invention, what I claimaslnw ond desire to secure by Lettcrs Patent-is- 1. In cable telegrcphy, a recciving or the following lllfitlll' rhe'ntalities: an impe ance, a shunt for said iinpcdance, an electromagnetic relay with ormature and contact sto s and connected in said' shunt to the impe once, s local circuit jort hcpurposc 'of'lengthcning the effect of 21. in cable. iclcgrapiw, a receiving orginr ism compr 2-. shun J ,OnlOIlS1"' IlQ inductive roars i: l m series os"to ouch other and to the cahlc,n local circuit and rccciving instrument nude free con denser, thc receiving instrun'icnt and con! denser in series as to each other and said local circuit, said circuitin shunt to resistance. i

In a receiving (u'gnnisn'i for cnbl e t- H nhy, two polnrizcd relays, one of said polar zed relays operntivcly related to the cubic proper, the second of said relays connectcd with one terminal to the tongue of the first relay and with the other, with the interposition of a condenser-to a circuit containing two sources of current, one pole of each of said sources connected to one of the forward stopgs of the first rclay.

4-. In a rcceivingcrganisni for cable tolegrcphy, a line relay and a local relay, a circuit voperatively connecting said two re-, lays to such other,'said circuit comprising noi the following elements two sources of c111" rent, one source connected with the negative pole to one of the forward stops of the one terminal of the coil or. tho local relay,

the second terminal oiscid coil connected to the tongue ct I the first relay; tWo'con-' dcnscrs, one condenser cverbrnlgmg the en'- -Lo onc of the forward stops of the line relay,

the second of said sources connected the positive pole to the second forward s o of said line relay, tho other poles of both said sources connected together; a condensi connected with one termlnal'to the junction of said two sources and connected with the, other terminal to one terminal of the-c011 of;

thc local relav; the second terminal of said COll connected to the tongue of the first re lay; two condensers, one condenser oven bridging the circuit of cneof the sources 11 iro of current and the second overbridging the condenser and inductive resistance inserted circuit of the second of'said sources. I in series as to'each other and the cable, a

6. In a. receiving organism for cable tel ground for said cable and a shunt around i. legraphy, a line relay, a local relay and a 1 said resistance, said shunt embracing a. free translating device, the line relay connected mndenscr and line relay. in shunt as to part of the cable. circuit; the In testimony whereof I affix my signature local relayconnccted with the iIItGI'POSItiOE l in resence if LWO witnesses. of a condenser to the line relay and the transi TSEDOR KITSEE' lating device connected to said local relay.

7. In a receiving organism for cable te- Wir'nasses: legraphy, means to overcome the shiffing of i EDITH R. STILLEY, the zero, said means comprising a shunted MARY (1 SMITH. 

